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v' <br /> SOIL BORING LOG Boring No. MW-12 Sheet: 1 of 3 <br /> Client Knowles Property Date 4/9-10/2012 <br /> Address 7835 Thornton Rd. Drilling Co. Al Well Abandonment Rig Type: LAR <br /> Stockton,CA Driller Rob <br /> Project No, 2129-1140-01 Method Hollow-Stem Auger Hole Diameter 8 inches <br /> Logged By. Shane Edmunds Sampler: 18"long x 2"diameter split spoon <br /> Well Pack sand: 46 ft.to 59 ft. Well Construction Casing Material: Schedule 40 PVC Screen Interval 48 to 58 ft <br /> bent: 43 ft.to 46 ft. Casing Diameter:2 in. Screen Slot Size 0.020-in. <br /> grout 0 ft.to 43 ft. Depth to GW: Ofirst encountered: 40 feet bgs .Static:32 feet bgs <br /> Sample Sample <br /> Blow Depth Lithologic - PID <br /> Type No. Count Time Recov, Well Details Scale column Descriptions of Materials and Conditions (PPM <br /> Asphalt at surface.Hand cleared to five feet below ground surface. _ <br /> 1 <br /> —2 <br /> 3 <br /> 4 CL Clay,100%clay,moist,black 5Y 2.512 <br /> 5 <br /> 6 <br /> —7 <br /> —8 <br /> —9 <br /> ---- <br /> 10 As above <br /> --- --------------- -- — <br /> 18 0 <br /> 20 11 SM Silty sand,70%sand,30%silt,moist,olive 5Y 5/4 <br /> — — ----- ----------------------------------------- --- <br /> S MW-12-11 23 1331 100% <br /> 12 <br /> 13 <br /> 14 <br /> 15 <br /> 17 ML Clayey silt,60%silt,40%clay,dry,dark yellowish brown 10YR 4/4 0 <br /> 21 16 <br /> S MW-12-16 24 1339 100% <br /> 17 <br /> 18 <br /> 19 <br /> 4-9 END 20 <br /> Comments: Borehole drilling to 20 feet bgs 4-9-12,resumed drilling 4-10-12 <br /> Recovery <br /> Sample <br /> 57-i�'ffTL/� <br /> ENVIRONMENTAL-INC. <br />